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1 April, 11:52

5x+9y=-3 and 3x-7y=17

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  1. 1 April, 14:32
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    I don't know what we have to do but from what I think it is ... to me the answer for the first one is 5 (3) + 9 (-2) = -3. The way I figured this one out is I multiplied 5x3 which gave me 15 and then 9x-2 which gave me - 18. Once you have that you should subtract 15 and - 18 which will give you - 3. I don't know the second one ... sorry
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